Identify the Common Law Parties to a Crime with Their

Identify the common law parties to a crime with their explanation.
-Accessory before the Fact

A) Someone who intentionally assists with the commission of a crime and who is actually or constructively present at the time of the crime.
B) One who actually commits a crime, either by his own hand, or by an inanimate agency, or by an innocent instrumentality.
C) A person who helps the principal after the criminal event takes place.
D) Someone who solicits, encourages, or commands another to offend.